Elder



(No Modelz) W. W. BATCHELDBR..

LAMP.

N0.312,317. lmfmmaedPeb.17,1886.v

EYERS, Pnoxnvumagmphu. washingmn D C UNITED STATES PATENT @tirrenoVILLIAM XV. BATCHELDER, OF NEW YORK, N. Y.

LAIVIP.

SPECIFICATION forming part of Letters Patent No. 312,317, dated February17, 1885.

Application filed .Tune 9, 1884. (No modc1.) v

To all whom, it may concern:

Be it known that I, WILLIAM W. Baron- ELDER, of New York, county andState of New York, have invented an Improvement in Lamps, of which thefollowing description, in connection with the accompanying drawings, isa specification, like letters on the vdrawings representing like parts.

My invention has for its object the production of a new and improvedlamp for producing gas or vapor from illuminating-oils and othervaporizable compounds for burning the gas or vapor so produced andprovide a iianie of great brilliancy and power.

A secondary object of my said invention is to protect theilluminating-flame and prevent itfrom smoking and liickering by means ofcurrents of heated air which surround the flame, the said currents alsoacting as a wall or barrier to give steadiness and direction to theflame.

A further object of the invention is to provide simple yet effectivemeans for raising and lowering the wick, and also for limiting itsmovement in the wick-tube and preventing it from being lowered too farto escape from the wick-tube and drop into the body or oil-receptacle ofthe lamp.

The nature of my invention is fully disclosed in the followingdescription, and is particularly pointed out in the claims.

-\ Figure l shows in longitudinal-vertical section a lamp embodying myinvention, the parts being shown in the position required after the wickis lighted for generating the illuminating vapor or gas and for heatingthe vapor-burner to cause an upward current of vapor and before thevapor is ignited at the vapor-exit; Fig. 2, a similar section with thelamp-body or oil-holder removed and the other parts in the positionrequired after the vapor is ignited; Fig. 3, an under side view of theburner to clearly illustrate the means for generating currents of heatedair to pass up about the flame, and also to show the passage or slot inthe contracted neck; Fig. 4, a

V`view in detail to show the bayonet-slots in the rim of the base toenable the locking of the non-conducting tube therein; Fig. 5, a frontelevation of the vapor-burner.

The base b is secured in the neck a of the lamp-body A in usual manner,and supports the wick-tube d, as with wires c. The said base is ofopen-work, as usual, for the admission of air into the burner. Thewick-tube d is in the form of a hollow cylinder, and receives thewick-holding tube e, which has free movement in said wick-tube d, andholds the circular wick by frictional contact. The wick itself ispreferably composed of ordinary lampwicking, C, having a wrapper orcovering of y asbestus, c. The wick may be moved in either direction inthe wick-holder e, it being held therein, as stated, by frictionalcontact with said holder, whereby the wick may be trimmed whennecessary. A spur wheel, f, having bearings in the base I), and providedwith the ordinary wheel or nut (not shown) to enable it to be rotated,projects into a slot, g, in the wick-tube d, and its teeth entertooth-slots g in the wick-holder e, whereby the said wickholder carryingthe wick may be easily raised or lowered in the wick-tube. A pin, 7L, onthe base b projects into an elongated slot, t', in the wick-holder, tolimit the amount of the upward or downward movement of said wickholderin the wick-tube d, and prevent any disengagement of parts and thefalling of the wick into the lamp-body A. Several projections, k, on thebase of a non-conducting tube, K, which is made of mica, asbestus, orother suitable material, fit and lock into baycnet-slots 2, cut in theprojecting rim or seat m of the base b, the purpose of whichbeing tolock the non-conducting tube K to said base when desired, and also topermit its ready removal therefrom. In the present instance thenon-conducting tube K forms a part of the vapor-burner N, which latteris preferably constructed with a broad vapor-exit, n, and an attachedair-heater, O, connected with the burner on the, outside thereof and ata point below the vapor-exit, the said air-heater being constructed inthe present instance of a band of metal bent back and forth upon itself,or corrugated, as shown, to provide a great extent of heating-surface.The band encircles the vapor-burner and is heated by conduction..

A ring, r, corrugated or fluted as shown, is fitted into the contractedportion of the burner N, above the non-conducting tube K, and isprovided with a cap-plate, 3, fitting the in- IOO terior diameter of thering at its top, to close such portion thereof and prevent the passageof air, gas, or vapor therethrough. A disk or follower, 4, adapted tomove within the ring r, has a rod, 5,which passes through an orifice inthe cap-plate 3, receives a crosspin, and enters the guide 6, attachedin this instance to the contracted neck 7, which has a slot, 8, the saidguide being arranged across said slot 8. The slot in the neck 7 is inthe present instance arranged at right angles to the vapor-exit a. Thedisk or follower, as shown in Fig. 2, rests on the top of the wick whensaid wick is projected above the top of the wick-tube, and when the lampis not in use the wick is moved slightly below the top of said tube, sothat the disk will rest on the tube and extinguish the vapor-producingiiame, as well as to prevent the escape of vapor or gas from said tube.The vapor-burner (the non-conducting tube being a part thereof) islifted from the base b and the wick lighted while it is slightly be 10Wthe top of the wick-tube, when said vaporburner is placed upon the baseb, with the pins k resting on top of the rim or seat m, so

lthat the follower-disk will be held by the cross-pin a: (engaging thecap-plate 3) sufficiently above the wick-tube to prevent the flame fromsmoking, when, after the burner is heated, the wick is thrown up and theburner moved into place on the base b, and the end of the wick isencircled by the ring r, while the top thereof is covered by thefollower-disk. While the follower-disk 4 and ring r are held above thewick, a strong heat-giving flame, without smoke, is produced, whichburns all the generatedvapor, so that no vapor for the time being willpass out of the vapor-exit. The vapor-burner is properly placed andlocked within the projecting rim m of the base by the pins k andbayonet-slots 2, after which the vapor is ignited at Iche vapor-exit.The projecting wick forces the follower-disk 4 up -in the ring andagainst the cap-plate 3, as indicated in Fig. 2, the end of the wickitself being within the ring. While in this condi` tion, the corrugatedor iiuted ring fr acts as a barrier to prevent the flamev issuing at thetop of said rim and igniting the volume of vapor or gas in the burner,the said ring being vertically corrugated or fluted, and thecorrugationsjieingV sufficiently narrow and deep to prevent the flamefrom passing through such passage, so that nothing issues from the topof the ring but the generated vapor or gas mingled with currents of airthat also pass up through said corrugated ring. The mingled vapor andair moves up through the slot 8 in the contracted neck of the burner,and then escapes at the vapor-exit a, where it, in burning, gives fortha strong and brilliant flame. rlhe slot 8 in the contracted neck 7,

when arranged crosswise of the vapor-exit, spreads or distributes thevapor in the burner, causes said vapor to be more thoroughly mingledwith the air, and increases the effectiveness of the lamp. Thenon-conducting tube K prevents the metallic parts below said tubebecoming heated, whereby any liability of the generation of vapor in thebody of the lamp A or the ignition of the oil therein is prevented. Thewick-tube projects into the nonconducting tube K, as clearly shown. Theairheater O, in contact with the heated burner and heated by conduction,surrounds the flame with currents of heated air, which prevent the flamefrom smoking or flickering and give great steadiness thereto. The bandor airheater O is corrugated simply to provide a greater extent ofsurface than otherwise.

The heater may be modified to a considerable extent without departingfrom the spirit of my invention. The iluted ring r can also be modifiedin various ways so long as the ob,- ject for which it is designed isaccomplished. I indin practice that when the vapor-burner is heated andthe vapor ignited at the vaporexit the bottom of the corrugated ringshould be suiiiciently removed from or above the wicktube to cause ablue flame only to .issue from the wick. Should the ring be placed toohigh above the top of the wick-tube, the flame at the wick-tube will beluminous and deposit soot, which objections are to be avoided.

I claim- 1. The combination, with the base of a lamp having a wick-tubeand a vapor-burner, of an interposed heat-non-conducting tube to preventthe passage of heat from the vapor-burner to the base, and provided witha bayonet-joint connection with the base, as set forth.

2. The combination, with the base provided with a wick-tube andcontained wick and means to raise and lower them, of a vaporburner and adisk or follower suspended therein and capable of a limited verticalmovement with relation to the wick and wick-tube, substantially as andfor the purpose described.

3. The combination, with a lamp having a wick-tube supportanda wick-tubepartly projecting above the support, of a vapor-burner adapted to befitted on the support to surround IOO IIO

the projecting portion of the wick-tube, Aand j provided with aninclosed corrugated or iluted ring having a cap, as specified, andsupported above the wick-tube, said ring being adapted to be lowered toencircle the end of the wick after it is projected beyond the top of thewicktube, substantially as set forth.

4. The combination, with a lamp having a rim or seat, of a vapor-burneradapted to be I detachably connected with the rim or seat, and providedwith an inclosed corrugated or luted ring closed at its upper interiordiameter, as specified, and adapted to surround the end of the wickafter the latter is projected beyond the top of the wick-tube and thevapor-burner is secured to its seat, substantially as set forth.

5. In a lamp, a wickholding tube having a slot, fi, combined with awick-tube adapted to receive the wick-holding tube, Vand provided with apin or tooth, h, projecting into the slot t' of the wick-holding` tube7substantially as speoiiied.

6. The combination, with a base of a lamp provided with a wick-tube andcontained wie-k, of a vapor-burner having a disk or follower arranged inthe interior of said burner7 and adapted to close the mouth of thewick-tube when the wiel: is lowered below the 'top of said wick-tube,substantially as set forth.

7. In avapor-burning larnp, a vapor-burner provided with a vapor-exitand a contracted neck having a slot erosswise of the vapor-exit,substantially as set forth.

8. The base provided with a rim or seat to i5 support the burner inelevated position above the wick-tube while the burner is being heated,to operate substantially as described.

In testimony whereof I have signed my name to this specioation in thepresence of two sub- 2o seribing Witnesses.

` WILLIAM XV. BATCHELDER.

Vitnesses:

G. NV. GREGORY, B. J. Novias.

